function verifyCode(target,time,mtarget,message){
	if(time==0){
		target.removeAttr('disabled');
		target.html('获取验证码');
		if(mtarget){
			mtarget.closest('p').css('display','none');
			mtarget.html(message);
		}
	}
	else{
		target.attr('disabled','disabled');
		target.html(time+'s后可以重新获取');
		if(mtarget){
			mtarget.closest('p').css('display','block');
			mtarget.html(message);
		}
		time--;
		setTimeout(function(){
			verifyCode(target,time);
		},1000)
	}
}